cbcvebase.
CVE-2017-2514
published 2017-05-22

CVE-2017-2514: An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. The issue involves the "WebKit" component…

PriorityP260high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
6.07%
92.5th percentile
An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Affected

5 ranges
VendorProductVersion rangeFixed in
appleios
appleiphone_os<= 10.3.1
applesafari<= 10.1
applesafari
debianwebkit2gtk< webkit2gtk 2.16.3-2 (bookworm)webkit2gtk 2.16.3-2 (bookworm)

Detection & IOCsextracted from sources · hover to see the quote

urlhttps://www.exploit-db.com/exploits/42063
  • Look for JavaScript creating nested iframes with onunload handlers that trigger anchor clicks to 'about:blank', a pattern characteristic of this UAF exploit.
  • The crash originates in WebCore::FrameView::scheduleRelayout via a use-after-free in WebCore::RenderWidget::setWidget; monitor for Safari/WebKit crashes in this call chain as a detection signal.
  • The exploit triggers the UAF through nested iframe navigation using onunload event handlers chained across three iframe levels; detect deeply nested iframe creation combined with onunload handler reassignment in web content.
  • ·Exploit was demonstrated against Safari 10.0.3 (build 12602.4.8); versions prior to Safari 10.1.1 and iOS prior to 10.3.2 are vulnerable.
  • ·On Debian-based Linux systems (webkit2gtk), the issue is resolved in version 2.16.3-2 across all tracked suites (bookworm, bullseye, forky, sid, trixie).

CVSS provenance

nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8LOW
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